Originally Posted by 32krazy!

tom i think thats some inaccurate info your giving here. running any pulley with a setup like a dual cai really leans a engine out. the tune is critical to ensure detonation and lean conditions are addresed. you may not feel it while driving but it doesnt takemany lean runs to cook a motor. my 32 was running bad lean with homemade intake mods and a c3 pulley. my intake wasnt flowing anywere near robs dual cai flows and i was running lean. the tune fixed it.
the line should be drawn at stock. anything after that should req. datalogging and adjustments based on the engine logs.